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What is the required resistance in mega ohm when performing megger?
Wiki User
∙ 11y ago
Normally the megger should be selected based on the following criteria.
1.Voltage rating of the megger
2.Range of the megger value
3.Manual - Hand operated analogue type
4.Auto- Digital Megger
To measure the insualtion resistance of Motor (LV Motors) Up to 500 V/1000 V Megger is sufficient
To measure the insualtion resistance of Motor (HV Motors) Up to 5000 V can be choosen
Normaly the range starts from 0.5 to Infinity meg value in the analogue However in digital the based on the least count /range of the instrument we can able to measure the insualtion value.
Wiki User
∙ 11y ago
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Why Megger have two ranges ohm and mega ohm?
If you measure a small resistance with the megger set in Mega ohm range you get a very tiny and inaccurate result, and If you measure a huge resistance with the megger set to mega ohm range it will bottom out. To get the most accurate measurements you want what you're measuring to be about the same as the scale you're using.
What do megger measure?
Megger is usually short for Mega Ohm Meter. It measures high values of resistance with good accuracy. Most often used to test insulation.
What reading should you get when you mega between phases on a pump?
The term is 'megger', not 'mega', and the answer is infinity.
What is a megger watt?
A mega Watt is 1 000 000 (1 million) Watts.
Why you use mega ohm resistance in small electronics circuits?
Each resistor in a circuit performs a well defined function and its resistance is calculated by the circuit designer as the voltage across it divided by the current through it. Sometimes the value of resistance required is over 1,000,000 hms.
Why Megger have two ranges ohm and mega ohm?
If you measure a small resistance with the megger set in Mega ohm range you get a very tiny and inaccurate result, and If you measure a huge resistance with the megger set to mega ohm range it will bottom out. To get the most accurate measurements you want what you're measuring to be about the same as the scale you're using.
What do megger measure?
Megger is usually short for Mega Ohm Meter. It measures high values of resistance with good accuracy. Most often used to test insulation.
How do you measure electrical insulation resistance value?
By Megger testing (meggering) of the motor any one can measure the IR of the motor. MEGGER is a device used to measure IR. Analog Megger device may generate 500 volts..it gives coil to coil or coil to body IR value...it should not be less than 2 Mega ohm, generally it should be or kept more than 5 mega ohm...thanks ...DEEPAK RAJPUT
What is a bridge megger?
A bridge megger can be used for resistance measurement and fault locationIt is so known because it measures high (mega-ohm) resistances, and uses a bridge circuit, which is suited to this type of measurement.Visit Test Equipment Connection for new and refurbished Megger Testing Equipment
What reading should you get when you mega between phases on a pump?
The term is 'megger', not 'mega', and the answer is infinity.
What is a megger watt?
A mega Watt is 1 000 000 (1 million) Watts.
Why you use mega ohm resistance in small electronics circuits?
Each resistor in a circuit performs a well defined function and its resistance is calculated by the circuit designer as the voltage across it divided by the current through it. Sometimes the value of resistance required is over 1,000,000 hms.
How can you find out if your electric cable damaged in a house?
A skilled repair man can use a tool called an Megger(mega-ohm meter) to check the condition of the insulation.
How do you build halo mega blocks 97011 resistance warthog?
read the instructions
When 10 ohm resistance and 100 mega ohm resistance are connected in series then what will be their conbined resistance?
The net effective resistance of resistors in series is the sum of the individuals.Combined resistance = (100,000,000) + (10) = 100,000,010Ωhms.
How do you test a dc motor with a mega meter?
A megameter, or a Megger as it is commonly called, is used to measure the insulation resistance of cables and other electrical equipment. The measured value is in mega ohms. Hence the term Megger. Most meggers generate 500 Volts DC supply, but their current capacity remains low. When the two terminals of a megameter is connected to across the equipment to be tested, the high voltage gets leaked into the equipment. The resistance is inversely proportional to the current flowing through the equipment under test. Originally, most meggers were analog in nature, and were generating high voltage using a dynamo, when the lever is rotated at high speed. Today most meggers available are digital, and can generate 500 volts as well as 1000V. Some meggers have winding resistance testing facility as well, and hence can be used as a single tool to test the resistance of a motor in ohms as well as in Megaohms. Meggers used for checking high resistance like that of mains transformrs, generate much higher voltages and are generally analog type.
How do you check mega ohms on compressor?
Usually you check mega-ohms by reading the resistance between compressor shell and the windings. There should be a large amount of resistance which means the windings are not shorted to the compressor case or shell. Use a DVM (digital volt ohm meter) to check the resistance.
